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https://issues.apache.org/jira/browse/HADOOP-12758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15133433#comment-15133433
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Larry McCay commented on HADOOP-12758:
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As I look to add regex patterns to test for option 3 it seems to me that
"^Mozilla" would pretty much cover everything that we need to be concerned with
in the near term. I'm basing this on: http://www.useragentstring.com/pages/All/
Considering that we don't need to taylor behavior based on which browser but
only whether it is a browser this may be adequate.
Would anyone have ideas of what I may be missing?
> Extend CSRF Filter with UserAgent Checks
> ----------------------------------------
>
> Key: HADOOP-12758
> URL: https://issues.apache.org/jira/browse/HADOOP-12758
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Reporter: Larry McCay
> Assignee: Larry McCay
> Attachments: HADOOP-12758-001.patch, HADOOP-12758-002.patch
>
>
> To protect against CSRF attacks, HADOOP-12691 introduces a CSRF filter that
> will require a specific HTTP header to be sent with every REST API call. This
> will affect all API consumers from web apps to CLIs and curl.
> Since CSRF is primarily a browser based attack we can try and minimize the
> impact on non-browser clients.
> This enhancement will provide additional configuration for identifying
> non-browser useragents and skipping the enforcement of the header requirement
> for anything identified as a non-browser. This will largely limit the impact
> to browser based PUT and POST calls when configured appropriately.
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